package com.situ.student.filter;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

public class EncodingFilter implements Filter {

    public EncodingFilter() {
    }

    public void init(FilterConfig fConfig) throws ServletException {
    }


	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		HttpServletRequest httpServletRequest = (HttpServletRequest) request;
		System.out.println("EncodingFilter.doFilter()");
		//处理POST编码问题  表单里面method="get" method="post"
		String method = httpServletRequest.getMethod();
		if ("post".equalsIgnoreCase(method)) {
			request.setCharacterEncoding("UTF-8");
		}
		//执行下一个过滤器或放行（访问servlet）
		chain.doFilter(request, response);
	}

	public void destroy() {
	}
}
